Solution - Simplification or other simple results

Step  1  :

Equation at the end of step  1  :

  ((52)4) • 55

Step  2  :

Equation at the end of step  2  :

  (52^4) • 55
 Step  3  :

Multiplying exponents :

 3.1    5⁸  multiplied by  5⁵   = 5^{(8 + 5)} = 5¹³

Final result :

  513